Kagem, Zambian Emerald Gemstone Mining | Gemfields
The Kagem emerald mine is the world''s single largest producer of emeralds and accounts for approximately 25% of global emerald production. It covers an area of approximately 41 square kilometres and is located in the central part of the Ndola Rural Emerald Restricted Area ("NRERA"), in the Copperbelt Province of Zambia.